Mary Teutsch, who plays Rosemary Clooney, says she studied Clooney's career by reading her autobiography and studying her performances on film. Her foil is Hal Hobson-Morse, whose multiple roles call for transformations from Clooney's psychotherapist, to her mother, to Bing Crosby, Frank Sinatra and her ex-husbands, among other characters. Gregory Moore, the show's director, is a renowned vocalist himself, and an uncommon expert on the music of the Great American Songbook authors whose music helped make Clooney famous. The actors and director talk to Cara Lieurance about the production and share their thoughts on what made Rosemary Clooney so special.